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teemuatlut / TMC2130Stepper

Arduino library for Trinamic TMC2130 Stepper driver
MIT License
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Reading DRV_STATUS #62

Closed gvandersel closed 5 years ago

gvandersel commented 5 years ago

I have the Simple example working (version TMC2130stepper 2.5.0) and the steppermotor is stepping in two directions under HW-SPI control. I'm using a Arduino pro Mini (5V, 16 Mhz) for controlling the TMC2130. It is a chines clone (Fysetc) with SPI enabled and CFG4 tied to GND and CFG5 tied to VIO (+5V). When i run Simple with the additional lines in the if clause Serial.println(TMC2130.version(), HEX); Serial.println(TMC2130.DRV_STATUS(), HEX); I get the following readings: (No stepper attached) Dir -> 0 11 60120000 or Dir -> 1 11 60120000 (Stepper attached) Dir -> 0 11 12000000 or Dir -> 1 11 12000000

I have red the TMC2130 datasheet (chapter 5.5.5, page 38), but I can't figure out what I'm reading.

Does anyone have a clue?

Groet,

Gerard van der Sel (NL)

teemuatlut commented 5 years ago

p26: register IOIN:

VERSION: 0x11=first version of the IC
Identical numbers mean full digital compatibility.

For the DRV_STATUS: 0x60120000 == 0b0110 0000 0001 0010 0000 0000 0000 0000 Meaning bits 17, 20, 29 and 30 are true. These correspond to CS_ACTUAL = 0b10010 = 18 and open load indicator phases A and B are true. Which makes sense if you have no stepper attached. These two also went away when you attached a motor.

gvandersel commented 5 years ago

Thanks,

If I understand it correct the reading with the stepping stepper is: 0x12000000 == 0b0001 0010 0000 0000 0000 0000 0000 0000, which means: s2gb set (phase B shorted to ground) otpw set (pre warning overtemperature) If I understand correctly the driver should be disabled (stepper not stepping?) because of s2gb.

Groet,

Gerard van der Sel (NL)